Phenotypic variation of the housefly, Musca domestica: amounts and patterns of wing shape asymmetry in wild populations and laboratory colonies

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Título: Phenotypic variation of the housefly, Musca domestica: amounts and patterns of wing shape asymmetry in wild populations and laboratory colonies
Autor/es: Ludoški, Jasmina | Djurakic, Marko | Pastor Monllor, Berta | Martínez-Sánchez, Anabel | Rojo, Santos | Milankov, Vesna
Grupo/s de investigación o GITE: Bionomía, Sistemática e Investigación Aplicada de Insectos Dípteros e Himenópteros
Centro, Departamento o Servicio: Universidad de Alicante. Departamento de Ciencias Ambientales y Recursos Naturales | Universidad de Alicante. Centro Iberoamericano de la Biodiversidad
Palabras clave: Developmental instability | Fluctuating asymmetry | Geometric morphometrics | Musca domestica | Wing shape
Área/s de conocimiento: Zoología
Fecha de publicación: 15-ago-2013
Editor: Cambridge University Press
Cita bibliográfica: Bulletin of Entomological Research, 2014, 104(1): 35-47. doi:10.1017/S0007485313000461
Resumen: Musca domestica L. (Diptera: Muscidae) is a vector of a range variety of pathogens infecting humans and animals. During a year, housefly experiences serial population bottlenecks resulted in reduction of genetic diversity. Population structure has also been subjected to different selection regimes created by insect control programs and pest management. Both environmental and genetic disturbances can affect developmental stability, which is often reflected in morphological traits as asymmetry. Since developmental stability is of great adaptive importance, the aim of this study was to examine fluctuating asymmetry (FA), as a measure of developmental instability, in both wild populations and laboratory colonies of M. domestica. The amount and pattern of wing shape FA was compared among samples within each of two groups (laboratory and wild) and between groups. Firstly, the amount of FA does not differ significantly among samples within the group and neither does it differ between groups. Regarding the mean shape of FA, contrary to non-significant difference within the wild population group and among some colonies, the significant difference between groups was found. These results suggest that the laboratory colonies and wild samples differ in buffering mechanisms to perturbations during development. Hence, inbreeding and stochastic processes, mechanisms dominating in the laboratory-bred samples contributed to significant changes in FA of wing shape. Secondly, general patterns of left–right displacements of landmarks across both studied sample groups are consistent. Observed consistent direction of FA implies high degrees of wing integration. Thus, our findings shed light on developmental buffering processes important for population persistence in the environmental change and genetic stress influence on M. domestica.
Patrocinador/es: This work was supported in part by the Ministry of Science of Serbia (Dynamics of gene pool, genetic and phenotypic variability of populations, determined by the environmental changes, no. 173012), and the Provincial Secretariat for Science and Technological Development (Molecular and phenotypic diversity of taxa of economical and epidemiological importance, and endangered and endemic species in Europe). This study was partially funded by project LIFE-ECODIPTERA (LIFE05-ENV/E/000302).
ISSN: 0007-4853 (Print) | 1475-2670 (Online)
DOI: 10.1017/S0007485313000461
Idioma: eng
Tipo: info:eu-repo/semantics/article
Derechos: © Cambridge University Press 2013
Revisión científica: si
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Aparece en las colecciones:INV - IBAI-DH - Artículos Científicos / Scientific Papers

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